Gun sight



Aug. 14, 1923.

C. A. NELSON as. eaaaaararcaa iae'rseiasars.

Patented Aug. 14, 1923.

UNITED STATES PATENT OFFICE.

CHARLES A. NELSON, OF UTICA, NEW YORK, ASSIGNOR 'I'O SAVAGE ARMS CORPORA- TION, OF UTICA, NEW YORK, A. CORPORATION OF DELAWARE.

GUN SIGHT.

Application filed. January 30, 1920. Serial No. 355,093.

To all whom it may concern:

Be it known that I, CHARLES A. NELSON, a citizen of the United States of America, residing in the city of Utica, county of Oneida, State of New York, have invented certain new and useful Improvements in Gun Sights, of which the following is a specification.

It is well known that it is impossible to assemble adjustable sights with their firearms, with any assurance that without test and correction they will correctly direct the projectiles to the targets for all shooters; adjustable sights, it will be remembered, are those which the shooter elevates and depresses at will to correct for changes of range. It is also well known that the personal error requires minor changes in the setting of an adjustable sight for different persons for the same range, for no two persons perhaps see the target along thefsights in exactly the same way. With the more delicate, more complex and expensive, sights the minor errors of manufacture and personality are readily corrected by the expenditure of time in the assembly of the sight with the gun, or by suitable calibrating mechanism, or both, or with sights which are capable of being elevated smoothly by imperceptible steps, by mere observation by each shooter after test that when the gun is in his hands the sight must be given certain settings for certain ranges respectively in order to reach the target, irrespective of the settings of the same sight on the same gun for the same ranges by other shooters and irrespective of the (presumably) correct settings. For the simpler and less expensive sights, however, and particularly for those sights which are capable of being elevated only in fixed definite steps, each step representing a considerable change of range (such a sight is hereinafter described), such methods of correction are unavailable for obvious reasons. One object of my invention is to provide sights with calibrating means for correcting the errors indicated which is available for sights of the latter type, that is for the cheaper and simpler adjustable sights. Preferably this means is simply a screw, located in an accessible position, by means of which the part of the sight observed in aiming may be given a suitable initial elevation that is variable at will, and

which is therefore available for the individ ual shooter as well as for the manufacturer. In the accompanying single sheet of drawings, I have illustrated the best embodiment of my invention of which I am now aware. Fig. 1 is an elevation of the barrel portion of a firearm carrying the sight embodying my invention. Fig. 2 is a plan View of the mechanism of Figure 1. Fig. 3 is an eleva tion of the elevator of the preceding figures. Fig. 4 is a larger elevation, partly in section, of the sight of the preceding figures.

The gun barrel 1 of the drawing carries the foresight 2 at its forward end and an adjustable sight near its rear end, the latter embodying the present invention. A spring leaf 3 of the rear sight carries the observable part 4: at its rear, and is provided at its forward end with a dove-tail tenon 5 seated in a similarly shaped mortise in the top of the barrel 1. The observable part 4: has the usual sight notch in its upper edge. The device 6 which holds the observable part 1 at different elevations is herein termed the elevator, being a wedge shaped member, slidahle lengthwise in a slot in the leaf and having a series of stepped notches in its upper surface corresponding to different ranges. For point blank range, say up to 50 yards, the lowermost notch of the elevator 6 is used, for shooting over a greater range say from 50 to 100 yards, the elevator is set back until the second notch is engaged, and for other ranges, the other notches are used correspondingly. The tension of leaf 3 maintains it seated in the notch of the elevator and holds the elevator in place.

In order that the sight may be initially set at the proper elevation, or corrected to accommodate some personal error, as above set forth, this invention provides a vertical screw 7 threaded in the rear end of the elevator 6 which is adjacent the lowest notches and forming a rear bearing for the elevator upon the upper surface of the barrel 1. This screw has a flat point bearing on the barrel, and is placed in a rearward flat-portion of the elevator, which is disposed flatwise to the barrel, and being relatively en larged, forms a grip means for the forward notched, wedge-shaped, fiat portion of the elevator which is placed edgewise to the barrel and slides in the slot in the leaf. The screw hole passes completely through the enlargement of the elevator so that the head of the screw is accessible from the upper side of the elevator. Therefore by its means the elevation of the notches may be readily adjusted, plus or minus, as required. Obvious ly this adjustment is gradual within the limits of the screw, so that a fine adjustment is available, and may be utilized for initial calibration by the manufacturer as Well as for later correction by the user, each thereby be ing enabled to calibrate the sight exactly for his purposes. in the elevator have been previously relatively spaced to conform to fixed differences of range, it will be obvious that the adjustment for an error as to one range substantially carries through for all.

lVhile I have thus illustrated and described the best embodiment of my invention of which I am now aware, it will be understood that this embodiment is merely illustrative of my invention and that my invention is not limited thereto but is set forth in the following claims.

Claims- 1. In an adjustable gun sight, the combination with an observable part and an elevator therefor comprising a part adapted to extend lengthwise of the gun, of means at one end of the elevator for raising and lowering the same at will to adjust the elevation of said end.

2. In an adjustable gun sight comprising a leaf adapted at one end to engage the sight support and at the other end carrying the Assuming that the notches observable part, and an elongated elevator slidable lengthwise thereof and provided with a series of stepped notches for receiving the leaf, the combination therewith of a calibrating screw at the end of the elevator which is adjacent the lowest notches, said screw providing a point of support to bear on the sight support for adjusting the position of the elevator relatively to the gun, the head of the screw being accessible from the upper side of the elevator.

3. The combination with a gun barrel, of an adjustable gun sight comprising a springleaf sight having an observable part at one end and adapted to be fixed to the gun barrel at the other end, a one-piece elevator for the end of the sight carrying the observable part, said elevator having a forward stepped flat portion disposed edgewise to the barrel and a rearward fiat portion disposed flatwise to the barrel, said rearward portion being relatively enlarged to form grip means for endwise shifting of the elevator and to contain a vertical screw-threaded hole, and a calibrating screw threaded in said hole in said rearward flat portion of the elevator to adjustably support the rear end of the elevator by bearing on the gun barrel the hole for the screw extending completely through the elevator so that the screw head is accessible for adjustment from the upper side of the elevator.

In testimony whereof I have signed this specification.

CHARLES A. NELSON. 

